The 75mm 78a Flatline was created for two reasons, one to maintain grip, and the second was to have a nice smooth drift. With a 75mm diameter, this wheel is fast, giving you the edge against your opponents. With a 56mm contact patch, this wheel drifts smoothly and consistently. The core on this wheel is slightly offset giving you an even wear, fast roll speed, and a controlled drift. After breaking the skin on this wheel, it is also perfect for freeriding!